Catalogue of Conchifera. Bv M. Deshayes. 



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List of British Mollusca and Shells; with Synonyma. By 

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Catalogue of Pulmouata. By Dr. Louis Pfeiffer and Dr. 

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IV. RADIATA. 



Catalogue of Marine Polvzoa. By G. Busk, F.R.S. 



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List of British Radiata; with Svnonvma. Bv Dr. J. E. Gray, 

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List of British Sponges ; with Synonyma. By Dr. J. E. Gray, 

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Catalogue of the Recent Echinida. By Dr. J. E. Gray, F.R.S. 

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V. BRITISH ZOOLOGY. 



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